BoilerFaultCodesTechnical description
Internal error (interruption of gas supply)
What causes this fault?
This fault occurs when the boiler's control system detects that the burner has lost its fuel source or cannot confirm a flame is present. The most common reasons are an external disruption to your gas supply, a blocked burner, or a faulty internal component that regulates gas flow.
This fault often appears during the first cold snap of winter when increased demand on the local gas network or internal components being worked hard for the first time can expose existing weaknesses.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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